As believers we meant to receive healing when forgiveness is already in place.
We might be suffering because someone offended us in the past and if we not forgive then we have not hit properly. Some might have offended us so badly that we carried that in our mind but if you are not willing to forgive you keep experiencing that trauma for a very long time.
Forgiveness is working for us to heal easily to keep this call this is the answer of forgiveness. This is the criteria for receiving forgiveness also that we ourselves must forgive those that sin against us. We must let go of every form of offense.
Sometimes you might lose your brother or sister but it's not worth it because of misunderstanding. Forgiveness is very strong. The devil does not know the language of forgiveness, he only knows anger so that's why we must forgive one another and let everybody have a taste of the love of God.
God is love. Everything about the vision of God is love. People should learn how to forgive so that we can erase all those evil away from us.